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java Programming Glossary: iterationsWhy is processing a sorted array faster than an unsorted array? http://stackoverflow.com/questions/11227809/why-is-processing-a-sorted-array-faster-than-an-unsorted-array 255. When the data is sorted roughly the first half of the iterations will not enter the if statement. After that they will all enter.. will correctly predict the branch except for the few iterations after it switches direction. Quick visualization T branch taken..
java get file size efficiently http://stackoverflow.com/questions/116574/java-get-file-size-efficiently tried to messure it up with the code below For runs 1 and iterations 1 the URL method is fastest most times followed by channel... 5535.0 URL sum 660 per Iteration 660.0 For runs 5 and iterations 50 the picture draws different. LENGTH sum 39496 per Iteration.. void main String args throws Exception int runs 5 int iterations 50 EnumMap FileSizeBench Long durations new EnumMap FileSizeBench..
Random errors when changing series using JFreeChart http://stackoverflow.com/questions/13205251/random-errors-when-changing-series-using-jfreechart because I need the X axis to be the number of my inner iterations not the time period and also update when 'some computations'..
http://stackoverflow.com/questions/211143/java-enum-definition this though it's horrendously complicated and took several iterations to get to where it is. EDIT Note that this doesn't stop you..
Fastest way to determine if an integer's square root is an integer http://stackoverflow.com/questions/295579/fastest-way-to-determine-if-an-integers-square-root-is-an-integer in three ways precomputed start value equivalent to ~10 iterations of the loop earlier exit of the loop and skipping some t values...
Can a progress bar be used in a class outside main? http://stackoverflow.com/questions/4637215/can-a-progress-bar-be-used-in-a-class-outside-main catch Exception e int iterations int MP M1Start M2Start Create all components progressFrame new.. JFrame.EXIT_ON_CLOSE progressBar new JProgressBar 0 iterations Add components to pane pane.add progressBar Position controls.. 0 i progressBar.setValue i progressBar.repaint if i iterations progressFrame.dispose end while if there's a value for current..
How do I write a correct micro-benchmark in Java? http://stackoverflow.com/questions/504103/how-do-i-write-a-correct-micro-benchmark-in-java Example Should the benchmark measure time iteration or iterations time and why Related Is stopwatch benchmarking acceptable java.. and compilations before timing phase s . Fewer iterations is OK on the warmup phase. The rule of thumb is several tens.. rule of thumb is several tens of thousands of inner loop iterations. Rule 2 Always run with XX PrintCompilation verbose gc etc...
http://stackoverflow.com/questions/7146207/what-is-the-best-macro-benchmarking-tool-framework-to-measure-a-single-threade e.g. with statistics so that they influence the number of iterations seems to be very difficult. Usemon parameterizable Java library..
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